juice

(1) Design a peak detector with 2 OP-Amps, 1 capacitor, and 1 diode ONLY.(12%)
    (設計一個峰值檢測計，只能使用兩個OP放大器、一個電容、一個二極體)

Ans: 圖請自行想像


(2) Name at least one drawback of the circuit that you just designed. (4%)
    (為你設計的電路，說明至少一個缺點)

Ans: It doesn't work.


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